Deprecate v1 Module

[tri-adam]

Mark module deprecated using module deprecation introduced in Go 1.17.

Closes #117

[codecov-commenter]

Codecov Report

Merging #152 (f88a51a) into v1 (b1cc8cf) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##               v1     #152   +/-   ##
=======================================
  Coverage   68.90%   68.90%           
=======================================
  Files          12       12           
  Lines        1595     1595           
=======================================
  Hits         1099     1099           
  Misses        318      318           
  Partials      178      178           

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